Browsing Artículos by Author "Dain, Sergio Alejandro"

Now showing items 1-3 of 3

    • Inequality between size and angular momentum for bodies 

      Dain, Sergio Alejandro (2014-01-31)
      A universal inequality that bounds the angular momentum of a body by the square of its size is presented and heuristic physical arguments are given to support it. We prove a version of this inequality, as consequence of ...

    • Inequality between size and charge in spherical symmetry 

      Anglada, Pablo Rubén; Dain, Sergio Alejandro; Ortiz, Omar Eduardo (2016)
      We prove that, for a charged spherically symmetric body, twice the radius is always strictly greater than the charge of the body. We also prove that this inequality is sharp. Finally, we discuss the physical implications ...

    • On the linear stability of the extreme Kerr black hole under axially symmetric perturbations 

      Dain, Sergio Alejandro; Gentile de Austria, Ivan (2014)
      We prove that for axially symmetric linear gravitational perturbations of the extreme Kerr black hole, there exists a positive definite and conserved energy. This provides a basic criteria for linear stability in axial ...